| /* |
| * Copyright (C) 2012, 2021 GitHub Inc. and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| package org.eclipse.jgit.internal.storage.file; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertThrows; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.io.File; |
| import java.io.OutputStream; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.eclipse.jgit.api.Git; |
| import org.eclipse.jgit.api.errors.JGitInternalException; |
| import org.eclipse.jgit.errors.LockFailedException; |
| import org.eclipse.jgit.junit.RepositoryTestCase; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| import org.junit.Test; |
| |
| /** |
| * Unit tests of {@link LockFile} |
| */ |
| public class LockFileTest extends RepositoryTestCase { |
| |
| @Test |
| public void lockFailedExceptionRecovery() throws Exception { |
| try (Git git = new Git(db)) { |
| writeTrashFile("file.txt", "content"); |
| git.add().addFilepattern("file.txt").call(); |
| RevCommit commit1 = git.commit().setMessage("create file").call(); |
| |
| assertNotNull(commit1); |
| writeTrashFile("file.txt", "content2"); |
| git.add().addFilepattern("file.txt").call(); |
| assertNotNull(git.commit().setMessage("edit file").call()); |
| |
| LockFile lf = new LockFile(db.getIndexFile()); |
| assertTrue(lf.lock()); |
| try { |
| git.checkout().setName(commit1.name()).call(); |
| fail("JGitInternalException not thrown"); |
| } catch (JGitInternalException e) { |
| assertTrue(e.getCause() instanceof LockFailedException); |
| lf.unlock(); |
| git.checkout().setName(commit1.name()).call(); |
| } |
| } |
| } |
| |
| @Test |
| public void testLockTwice() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| lock.write("other".getBytes(StandardCharsets.US_ASCII)); |
| lock.commit(); |
| assertFalse(lock.isLocked()); |
| checkFile(f, "other"); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| try (OutputStream out = lock.getOutputStream()) { |
| out.write("second".getBytes(StandardCharsets.US_ASCII)); |
| } |
| lock.commit(); |
| assertFalse(lock.isLocked()); |
| checkFile(f, "second"); |
| } |
| |
| @Test |
| public void testLockTwiceUnlock() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| lock.write("other".getBytes(StandardCharsets.US_ASCII)); |
| lock.unlock(); |
| assertFalse(lock.isLocked()); |
| checkFile(f, "content"); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| try (OutputStream out = lock.getOutputStream()) { |
| out.write("second".getBytes(StandardCharsets.US_ASCII)); |
| } |
| lock.commit(); |
| assertFalse(lock.isLocked()); |
| checkFile(f, "second"); |
| } |
| |
| @Test |
| public void testLockWriteTwiceThrows1() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| lock.write("other".getBytes(StandardCharsets.US_ASCII)); |
| assertThrows(Exception.class, |
| () -> lock.write("second".getBytes(StandardCharsets.US_ASCII))); |
| lock.unlock(); |
| } |
| |
| @Test |
| public void testLockWriteTwiceThrows2() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| try (OutputStream out = lock.getOutputStream()) { |
| out.write("other".getBytes(StandardCharsets.US_ASCII)); |
| } |
| assertThrows(Exception.class, |
| () -> lock.write("second".getBytes(StandardCharsets.US_ASCII))); |
| lock.unlock(); |
| } |
| |
| @Test |
| public void testLockWriteTwiceThrows3() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| lock.write("other".getBytes(StandardCharsets.US_ASCII)); |
| assertThrows(Exception.class, () -> { |
| try (OutputStream out = lock.getOutputStream()) { |
| out.write("second".getBytes(StandardCharsets.US_ASCII)); |
| } |
| }); |
| lock.unlock(); |
| } |
| |
| @Test |
| public void testLockWriteTwiceThrows4() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| try (OutputStream out = lock.getOutputStream()) { |
| out.write("other".getBytes(StandardCharsets.US_ASCII)); |
| } |
| assertThrows(Exception.class, () -> { |
| try (OutputStream out = lock.getOutputStream()) { |
| out.write("second".getBytes(StandardCharsets.US_ASCII)); |
| } |
| }); |
| lock.unlock(); |
| } |
| |
| @Test |
| public void testLockUnclosedCommitThrows() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| try (OutputStream out = lock.getOutputStream()) { |
| out.write("other".getBytes(StandardCharsets.US_ASCII)); |
| assertThrows(Exception.class, () -> lock.commit()); |
| } |
| } |
| |
| @Test |
| public void testLockNested() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| assertThrows(IllegalStateException.class, () -> lock.lock()); |
| assertTrue(lock.isLocked()); |
| lock.unlock(); |
| } |
| |
| @Test |
| public void testLockHeld() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lock()); |
| assertTrue(lock.isLocked()); |
| LockFile lock2 = new LockFile(f); |
| assertFalse(lock2.lock()); |
| assertFalse(lock2.isLocked()); |
| assertTrue(lock.isLocked()); |
| lock.unlock(); |
| } |
| |
| @Test |
| public void testLockForAppend() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| LockFile lock = new LockFile(f); |
| assertTrue(lock.lockForAppend()); |
| assertTrue(lock.isLocked()); |
| lock.write("other".getBytes(StandardCharsets.US_ASCII)); |
| lock.commit(); |
| assertFalse(lock.isLocked()); |
| checkFile(f, "contentother"); |
| } |
| |
| @Test |
| public void testUnlockNoop() throws Exception { |
| File f = writeTrashFile("somefile", "content"); |
| try { |
| LockFile lock = new LockFile(f); |
| lock.unlock(); |
| lock.unlock(); |
| } catch (Throwable e) { |
| fail("unlock should be noop if not locked at all."); |
| } |
| } |
| } |